Cargo NetMaterialPolyester&colon;PEUsed mainly where acid conditions are present or minimum stretch is desired&comma;polyester is unaffected by common acid and hot bleaching agents&comma;it is not suitable for use with concentrated sulfuric acid&comma;alkaline or at temperature in excess of 100'C or less than -40'C&comma;stretch at rated capacity is approximately 3&percnt;Nylon&colon;PAThe most widely used general-purpose synthetic web sling&comma;is unaffected by grease and oil&period;It has good chemical resistance to aldehyde&comma;ethers&comma;and strong alkalis&colon;but is not suitable for use with acids and bleaching agents or at temperatures in excess of 100'C or less than -40'C&period;Stretch at rated capacity is approximately 6-8&percnt;&period;And if wet&comma;maybe the strength will be less over 10&percnt;Polypropyline&colon;PPPolypropyline is little affected by acids or alkalis and suitable for application where the highest resistance to chemicals other than solvents is required&period;Using temperatures scope is from -40'C up to 80'C